Sticky: (Official) 370Z Clutch Pressure (CSC) Failures

Jsolo · 07-13-2015, 04:24 PM

^^More smiles per mile on the bike any anything with 4 wheels.

firulice · 07-13-2015, 07:14 PM

So I drove my Z for the first time today since my quick trip to San Diego 10 days ago when I had my clutch sticking problems. Drove great today so I guess I have a little more time before my grenade explodes lol the two times it happened to me were getting off the freeway after long drives. Fluid looks fine.

MagmaRed370z · 07-13-2015, 07:20 PM

Quote:

Originally Posted by firulice

So I drove my Z for the first time today since my quick trip to San Diego 10 days ago when I had my clutch sticking problems. Drove great today so I guess I have a little more time before my grenade explodes lol the two times it happened to me were getting off the freeway after long drives. Fluid looks fine.

Can a mechanically inclined person here explain in detail why the CSC fails and then goes back to normal?, then fails again (pedal to the floor) and comes back after a while? Sorry not a motorhead here.

KoolKarmaJoe · 07-13-2015, 07:50 PM

Quote:

Originally Posted by schellingr

Can a mechanically inclined person here explain in detail why the CSC fails and then goes back to normal?, then fails again (pedal to the floor) and comes back after a while? Sorry not a motorhead here.

My guess, and it is a GUESS, that it happens when fluid/clutch hydraulics get really hot. I'm leaning towards changing my clutch fluid twice a year to be on the safe side due to my spirited driving style & will only use GTR Hydraulic fluid.

jwick · 07-13-2015, 07:55 PM

Quote:

Originally Posted by KoolKarmaJoe

My guess, and it is a GUESS, that it happens when fluid/clutch hydraulics get really hot. I'm leaning towards changing my clutch fluid twice a year to be on the safe side due to my spirited driving style & will only use GTR Hydraulic fluid.

There's nothing special about the GTrR fluid. Use Motul rbf600 synthetic

http://www.racerpartswholesale.com/p...id/Brake_Fluid

eastwest2300 · 07-13-2015, 08:47 PM

Quote:

Originally Posted by jwick

There's nothing special about the GTrR fluid. Use Motul rbf600 synthetic

Brake Fluid - MOTUL RBF 600 Racing Brake Fluid

Thats what I'm using. RBF600

KoolKarmaJoe · 07-14-2015, 09:04 AM

Quote:

Originally Posted by jwick

There's nothing special about the GTrR fluid. Use Motul rbf600 synthetic

Brake Fluid - MOTUL RBF 600 Racing Brake Fluid

I agree, it was handy at time of fluid change. Still a better option than the average/no name brands of brake fluid sold at gas stations.

Uxi · 07-14-2015, 12:17 PM

Quote:

Originally Posted by KoolKarmaJoe

My guess, and it is a GUESS, that it happens when fluid/clutch hydraulics get really hot. I'm leaning towards changing my clutch fluid twice a year to be on the safe side due to my spirited driving style & will only use GTR Hydraulic fluid.

That doesn't seem to fit. It doesn't seem to matter how hard you drive it but pretty random. I was very mild with mine and only just out of warranty when it happened. I've been a little harder on it since break-in period ended, but really rather mild compared to how often I would redline my old Honda (since I don't want a reckless driving ticket

).

JARblue · 07-14-2015, 08:44 AM

Quote:

Originally Posted by schellingr

Can a mechanically inclined person here explain in detail why the CSC fails and then goes back to normal?, then fails again (pedal to the floor) and comes back after a while? Sorry not a motorhead here.

My understanding is that as the fluid gets dirty, the dirt particles get past the seals on the CMC and/or CSC, allowing air pockets into the clutch system. This is the reason that some people just get a half dead pedal instead of full on failure. Once the seals deteriorate enough, you get stranded. This is also the reason you need to change both the CMC and the CSC at the same time because dirty fluid from the old part can compromise the new part if you just replace one. I also suspect hot fluid will aid the fluid's ability to get past the seals as the fluid is thinner.

eastwest2300 · 07-14-2015, 11:46 AM

Oh I forgot to mention, I prepaid for the labor at AAM, I could have had the Z done by this Thursday or Friday, but Im waiting on my fluids in the mail.. So next Friday, we should be rocking and rolling.

cjwsrt6 · 07-14-2015, 02:32 PM

So i guess im going to be part of the problem, ive had my z for about 8 months, 30,000 miles and 5 autocross events, when the car gets hot, even on the interstate for 20 minutes when i go to push the clutch in it is very weak both in and out. Im going to take it to the dealer thursday just to have the record on file and then go about wrapping my line and changing the fluids. i made the claim about the csc failure online a week or so ago, anybody know of any resolution with these claims?

eastwest2300 · 07-14-2015, 07:13 PM

Quote:

Originally Posted by cjwsrt6

So i guess im going to be part of the problem, ive had my z for about 8 months, 30,000 miles and 5 autocross events, when the car gets hot, even on the interstate for 20 minutes when i go to push the clutch in it is very weak both in and out. Im going to take it to the dealer thursday just to have the record on file and then go about wrapping my line and changing the fluids. i made the claim about the csc failure online a week or so ago, anybody know of any resolution with these claims?

They're gonna tell you to take it to the dealer and have it "serviced" which means bend over and cough... for $2000

MagmaRed370z · 07-14-2015, 08:03 PM

Quote:

Originally Posted by eastwest2300

They're gonna tell you to take to the dealer and have it "serviced" which means bend over and cough... for $2000

That's pretty much it. Yup.

cjwsrt6 · 07-15-2015, 10:05 AM

Quote:

Originally Posted by eastwest2300

They're gonna tell you to take it to the dealer and have it "serviced" which means bend over and cough... for $2000

i work at a dealership in town, im going to take it to the dealer away from me just to have a record of it, then ill do some research and purchase an upgraded one

eastwest2300 · 07-15-2015, 11:11 AM

Quote:

Originally Posted by cjwsrt6

i work at a dealership in town, im going to take it to the dealer away from me just to have a record of it, then ill do some research and purchase an upgraded one

good luck man.

07-13-2015, 04:24 PM	#1 (permalink)
Jsolo Track Member Join Date: Dec 2011 Location: chicago Posts: 783 Drives: '12 G37 6MT Rep Power: 15	^^More smiles per mile on the bike any anything with 4 wheels. __________________ G37S Sedan 6MT, Eibach swaybars, Invidia Exhaust, Weaker Clutch Pedal Spring For sale links

07-13-2015, 07:14 PM	#2 (permalink)
firulice Enthusiast Member Join Date: Nov 2014 Location: utah Posts: 277 Drives: 40th Rep Power: 1106	So I drove my Z for the first time today since my quick trip to San Diego 10 days ago when I had my clutch sticking problems. Drove great today so I guess I have a little more time before my grenade explodes lol the two times it happened to me were getting off the freeway after long drives. Fluid looks fine. __________________ 40th-40th edition. HFC, Nismo exhaust, Stillen intakes, GTR start, UpRev

07-14-2015, 11:46 AM	#10 (permalink)
eastwest2300 A True Z Fanatic Join Date: May 2010 Location: South FL Posts: 91,031 Drives: '16QX70/'21 Supra3.0 Rep Power: 2684552	Oh I forgot to mention, I prepaid for the labor at AAM, I could have had the Z done by this Thursday or Friday, but Im waiting on my fluids in the mail.. So next Friday, we should be rocking and rolling. __________________ Infiniti QX70 & Toyota Supra 3.0 Premium

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07-14-2015, 02:32 PM	#11 (permalink)
cjwsrt6 Enthusiast Member Join Date: Apr 2014 Location: Alabama Posts: 452 Drives: 2005 crossfire Srt6 Rep Power: 12	So i guess im going to be part of the problem, ive had my z for about 8 months, 30,000 miles and 5 autocross events, when the car gets hot, even on the interstate for 20 minutes when i go to push the clutch in it is very weak both in and out. Im going to take it to the dealer thursday just to have the record on file and then go about wrapping my line and changing the fluids. i made the claim about the csc failure online a week or so ago, anybody know of any resolution with these claims?